Even what I now tell you secretly is not to be kept secret long, but declared publicly. Therefore, What ye hear in the ear, publish on the house — top — Two customs of the Jews seem to be alluded to here. Their doctors used to whisper in the ear of their disciples what they were to pronounce aloud to others. And as their houses were low and flat roofed, they sometimes preached to the people from thence. Luke 12:3.
Related Commentaries of Matthew 10:27
Matthew 10:27
27 What I tell you in darkness, that speak ye in light: and what ye hear in the ear, that preach ye upon the housetops.